Everything Is Fine from Canada's Yves-Christian Fournier took the New Directors Showcase Prize for a director of a first or second feature and Anna Melikyan's Russian drama and familiar festival tourist Mermaid earned a special jury prize.
The special grand jury narrative prize went to Russell Brown's The Bluetooth Virgin and the documentary competition special jury prize was shared by France's Raphael Mathie for Combalion and Timothy Hotchner for Accelerating America.
In the short film roster, Rebecca Dreyfus' 'Self Portrait With Cows Going Home' And Other Works: A Portrait Of Sylvia Plachy took the documentary award while Christina Voros earned a special jury prize for The Ladies.
The short animation prize went to Luis Cook's UK entry The Pearce Sisters as Kim Slate's Home took the special jury prize.
The short narrative grand jury prize went to India's Atul Taishete for Rewind and special jury prizes were bestowed upon Australia's Amy Gebhardt for Walnut, the UK's Paddy Considine for Dog Altogether, Finland's Teemu Nikki for A Mate and Ireland's Steph Green with New Boy.
The SIFF 2008 FutureWave WaveMaker Award and a $2,500 cash prize went to Rose McAleese for Disorder. The SIFF and IndieFlix 2008 MyFestival award and a $1,500 cash prize went to Anthony O'Brien's Perfect Sport while John Burish won the short film category and a $500 cash prize with Robbie's Withdrawal.
Jason Goodman's Eternal City and Kirsten Alaqidy's Hot Wind: America's Fallout Casualties earned the MyFestival Special Recognition Awards.
In the SIFF 2008 Golden Space Needle Audience Awards, best film went to Germany's Doris Dorrie for Cherry Blossoms - Hanami and documentary honours went to Denny Tedesco's The Wrecking Crew.
Jordan's Amin Matalqa was named best director for Captain Abu Raed, Alan Rickman took the acting trophy for Bottle Shock, Jessica Chastain was named best actress for Jolene and the best short was named Andreas Utta's German entry Felix.
The Lena Sharpe Award given to a female director who receives the most votes from the public went to Courtney Hunt's Frozen River.
SIFF 2008 competition grand jury award winners each received a $5,000 cash prize and other goods. SIFF 2008 grand jury short film award winners each received a $2,500 cash prize and various goods.
'Seattle's enthusiastic film audiences continued to affirm SIFF's prominence as a world-class showcase for extraordinary film experiences,' SIFF artistic director says Carl Spence said. 'Almost half of this year's feature films were from first or second time directors, and seventy percent entered the Festival without US distribution, maintaining SIFF's reputation as a fiercely independent showcase for audience discovery.'